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HMDI Issue - Mode Not Supported

Okay so I have a Lenovo Thinkpad E530, and my Girlfriend has a Sony Vaio.

HDMI works on our 42" TV fine with both laptops. We have a little 22" inch samsung TV in the bedroom which when hooked up with a HDMI cable works fine with my girlfriends Vaio, it automatically changes the resolution to 1280 x 720.

When I hook my ThinkPad up to it however, the laptop screen goes black and the TV says "Mode not supported". I tried changing my resolution to 1280 x 720 manually before plugging in but still the same message and black screen. Changing the display mode via 'Windows button + P' does nothing before or whilst plugged in either.

Am I right in thinking that HDMI has come in a variety of 'flavours' - I think we're now at 1.4 - with each one successively supporting more functionality? It could be that there is a mismatch between the HDMI capability on the laptop and the HDMI mode on the TV. In which case, I'm not sure there's a fix.

I have looked through google results including your link and it all relates to set top boxes or other devices.

When I click screen resolution > advanced settings; It says my adapter type is 'Intel HD graphics 3000'. This laptop also has a dedicated Nvidia GeForce 630m Graphics card. How can I make my screen resolution run off the Nvidia?

I have a good feeling that will fix it because my girlfriends laptop uses a dedicated graphics type.

For a random Edge model I found by Googling, right clicking on the desktop allows you to choose between high performance graphics and low power graphics. Might not be the same model as yours though. Or do you have an NVIDIA control panel somewhere that allows you to switch it in and out?

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